Wheeled scraper



(No Model.) 2 Sheets-Sheet; 1.

0. B. HUNTER.

WHEELEDV SGRAPBR. No. 372,415. Patented Nov. 1, 1887.

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2 S-heetsSheet 2.

(No Model.)

0. B. HUNTER. WHEELED SGRAPER.

Patented Nov. 1, 1887.

N. PETERS. Phmoillhogmphar. WashinglulL D. c

0 bowl, as it is variously called.

UNITED STATES ATENT Fries.

CHARLES BENJAMIN HUNTER, OF TRAVER, CALIFORNIA.

WHEELED SCRAPER.

SPECIFICATION forming part of Letters Patent No. 372,415, dated November 1, 1887.

Application filed February 28, 1887. Serial No. 229,259.

To all whom it may concern:

Be it known that I, CHARLES BENJAMIN HUNTER, of Traver, Tulare county, State of California, have invented an Improvement in \Vheeled Scrapers; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to the class of scrapers; and it consists in the arrangement and combination of parts, hereinafter fully described and claimed.

The object of my invention is to provide a simple, economical, and effective scraper.

Referring to the accompanying drawings for a more complete explanation of my invention,

Figure 1 is a side elevation of my scraper,.

showing the scoop depressed. Fig. 2 is aside elevation showing the scoop elevated. Fig. 3 is a plan of my scraper.

A is a bent axle, upon the journals of which are mounted the wheels B. To the axle is secured the frame 0, to which is attached the pole D.

E is the scraper proper, or scoop or It may be madein any suitable manner,its essential parts being its front blade or bit, 0, its body 0', and sides e A handle, F, is secured to its back for directing and dumping it.

To the axle A, at each end and just within the wheel-hubs, is secured rigidly and solidly a curved crank, G, to the lower end of which is pivoted a curved link, G, of about the same dimensions as the crank G, but having an opposite curve, so that when the link is extended, as shown in Fig. 1, it and the crank G above form an ogee curve or a reversed letter 8. To the lower end of each curved link G are attached chains H, which are secured to and suspend the bowl or scoop E. The front of the scoop is further connected by chains I with the frame in front, whereby the draft is lowered and so directed as to pull the bit of the scoop into the ground when taking earth.

To the rear portion of the frame 0, which for this purpose is extended to a point behind the axle, is pivoted, at j, a lever, J, the handle of which projects backwardly to within reach of the operator. The inner or lower end of (No model.)

the lever J has a curved part, j, the curve of which approximates to that of the wheel-hub, being but little larger.

Secured solidly and rigidly to the extreme end of the axle A, outside of the wheel-hub, is a bar, K, which extends radially beside the wheel and is connected at its outer end with a grip-shoe, L, to which it is pivoted, Fig. 3. The grip-shoe extends across the wheel-tire and has pivoted to its inner end a rod, M, the other end of which is pivoted to the extreme end of the curved portion j of the main lever J. A flexible strap, N, connects the main le ver J with the rod M.

Extending from the grip-shoe inwardly is a stop-lug, Z, which comes in contact with the lever J and supports the shoe when at rest. Upon the rear extension of the frame 0, to which lever J is pivoted, is astop-lug, c, which limits the forward movement of said lever.

The operation of my scraper is as follows: When about to take a load, the several parts occupy the positions shown in Fig. l-that is to say, the scoop is down on the ground, the curved links G are downwardly extended, the curved cranks Glikewise, the main lever J is in position to be grasped by the operator from behind, the grip-shoe rests on the lever byits stop Z and does not bind on the wheel-tire, and the flexible strap is loose. The operator, by means of the handle F, properly directs the nose or bit of the scoop into the ground, takes his load, and levels the scoop again, all this being permitted by the chain suspension and connection of the scoop. He now wishes to elevate the scoop with its load, and therefore, while the machine is still traveling, he throws the leverJ upwardly. 'lheimmediate effect of this is to cause the curved end j'to tighten up on the rod M, which thus drawsin on the pivoted gripshoe L, causing said shoe to bind upon the wheel-tire. The shoe thereupon is carried forward by the wheel, and the operator, continuing to move the lever J upward, whereby he moves its curved end j downward, keeps the connections tight and preserves the binding effect of the shoe on the wheel. The shoe,n1oving with the periphery of the wheel, of course travels faster than the lever J, and increases the distance between them, thereby, as I shall presently show, em abling the full result-namely, a half-turn of the axleto be produced with a short move- The cranks G,being rigidly connected with the -ter.

axle,are also turned, their lower ends describing an arc of a circle with the axle for a cen- These, therefore, raise the links G, which, turning on their pivots, approach the cranks, until,when these latter have described one hundred and eighty degrees, more or less, they lie beside them in adjacent planes, the connected ends of the two being above the axle, while the scoop, suspended from the lower ends of the links, is elevated to aplane just under the axle, in which. position it is held and carried. When the scoop has been thus elevated, the lever J has about reached its limit of motion,and, comingin contact with the stop 0, can go no farther. The consequence is that, the strain on the rod M being relieved, the grip-shoe at once loosens,and, throwing off from the wheel-tire, drops slightly until caught and held by the strap N. The parts being thus relieved, the scoop is still held up,because the cranks G and links G have been carried a little beyond the perpendicular and rest against the axle. Thiscarrying position is shown in Fig. 2. When the machine reaches the dumpingplace, the scoop is inclined by its handle F and the load discharged. It then comes back to the loading-place again, where the scoop must be dropped. The operator now pulls back on lever J, which, acting through the strap N, raises the grip-shoe,which is now kept free of the wheel-tire by the upwardly-turning pointj of the lever following it up and, through the rod M, pushing it out. The upward movement of the shoe, through the bar K, turns the axle back until, when the cranks G have moved back far enough behind the perpendicular,thelinks Gdrop away from them with a rush and the parts resume the position shown in Fig. 1.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a scraper, the combination of the axle A, having the curved cranks G, the wheels 011 the axle, the curved links G, pivoted to the cranks G, the scoop or bowl suspended from the links, a grip for throwing the wheel and axle into and out of gear, and a lever for op-- erating the grip, whereby the axle is turned and the scoop or bowl raised and lowered, substantially as herein described.

2. In a scraper, an axle having cranks, wheels mounted on the axle, and a scoop or bowl suspended from the cranks, in combination with mechanism for throwing the wheel and axle into and out of gear, whereby the axle is turned and the scoop or bowl raised and lowered, consisting of the pivoted lever J, having a curved end, j, the grip shoe L,acting on the wheel-tire, the bar K, pivoted to one end of the grip-shoe and fast on the axle, and the rod M, pivoted to the curved end of lever J and to the other end of the grip shoe, substantially as herein described.

3. In a scraper, an axle having cranks, wheels mounted on the axle, and a scoop or bowl suspended from the cranks, in combination with the pivoted lever J, having a curved end, j, the grip-shoe L, acting on thewheeltire, the bar K, pivoted to one end of the gripshoe and fast on the axle, the rod M, pivoted to the curved end of lever J and to the other end of the grip-shoe, and the flexible strap N,

connecting the lever J with the bar M, substantially as and for the purpose herein described.

4:. In a scraper, the axle A, the wheels 13, journaled on the axle, the curved cranks G, secured rigidlytotheaxle, the curved links G, pivoted to the cranks G, and the scoop or bowl E, suspended from the links, in combination with the pivoted lever J, having a curved end, j, the grip-shoe L, acting on the wheel-tire, the bar K, pivoted to one end of the grip shoe and fast on the axle, and the rod M, pivoted to the curved end of the lever and to the other end of the grip shoe, substantially as and for the purpose herein described.

5. In a scraper, the axle A, the wheels B,

journaled on the axle, the curved cranks G, secured rigidly to the axle, the curved links G, pivoted to cranks G, and the scoop or bowl E, suspended from the links, in combination with the pivoted lever J, having a curved end, j, the gripshoe L, acting on the wheel-tire,

1 the bar K, pivoted to one end of the grip shoe and fast on the axle, the rod M, pivoted to the curved end'of the lever and to the other end of the grip-shoe, and the flexible strap N, connecting the lever J with the rod M, substantially as and for the purpose herein described.

6. In a scraper, the axle A, the wheels 13, journaled thereon, the frame 0, carried by the axle, the curved cranks G, secured rigidly to the axle, the curved links G,pivoted to cranks G, and the scoop or bowl E, suspended from the links, in combination with the pivoted lever J, having a curved end,j, the stop-lug c on the frame 0, for limiting the forward movement of the lever, the grip-shoe L, acting on the wheel-tire, the bar K, pivoted to one end of the grip-shoe and fast on the axle, the rod M, pivoted to the curved end of the lever J and to the other end of the grip-shoe, and the flexible strap N, connecting the lever J with the rod M, substantially as and for the purpose IOO pending it from the links and connecting it with the frame, in combination with the lever J, pivoted to the frame and having a curved end, j, the grip-shoe L, acting on the wheeltire, the barK, pivoted to one end of the gripshoe and fast on the axle, the rod M, pivoted to the curved end of lever J and to the other, end of the grip-shoe, and the flexible strap N,

connecting the lever J with rod M, substantially as herein described.

In Witness whereof I have hereunto set my hand.

CHARLES BENJAMIN HUNTER. Nitnesses:

O. O. GOODIN, PETER O. JURGENS. 

